topic 3 unit 3

Question 1

what is phosphoric acid

Answer 1

is important in fertilizers, detergent and a flavouring agency in soft drinks, cheeses, jams and jellies and food with tangy flavour

Question 2

what is sulphuric acid used for

Answer 2

is the electrolyte in you car battery, but it is also used in manufacturing paints, days, refining oil and gas.

Question 3

what is sodium hydroxide used for

Answer 3

is a strong base that is used in household cleansers, solvents and film processing

Question 4

what is aluminum hydroxide used for?

Answer 4

is a key ingredient in antacid tablets (tums and rolaids)

Question 5

acids and bases are what ?

Answer 5

solutions

Question 6

how do we know if a solution is an acid or a base

Answer 6

we use a chemical indicator or a substance that changes colour when it reacts with an acid or base or measure with a Digital pH meter.

Question 7

chemical indicators include what?

Answer 7

red litmus paper, blue litmus paper, universal pH paper, and cabbage juice